diff --git a/README.md b/README.md
index 1f375e873..ce9b12add 100644
--- a/README.md
+++ b/README.md
@@ -331,6 +331,7 @@ Welcome to register the company name in this issue: https://github.com/alibaba/a
 ![卓越教育](static/zhuoyuejiaoyu.png)
 ![狐狸金服](static/hulijingfu.png)
 ![三体云](static/santiyun.png)
+![证大文化](static/zhengdawenhua.png)
 
 ### Credit
 
diff --git a/README_CN.md b/README_CN.md
index eecab70cf..69492c99b 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -328,6 +328,7 @@ $ classloader
 ![卓越教育](static/zhuoyuejiaoyu.png)
 ![狐狸金服](static/hulijingfu.png)
 ![三体云](static/santiyun.png)
+![证大文化](static/zhengdawenhua.png)
 
 ### Credit
 
diff --git a/static/zhengdawenhua.png b/static/zhengdawenhua.png
new file mode 100644
index 000000000..e66fe9c3c
Binary files /dev/null and b/static/zhengdawenhua.png differ